Tags
A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.
For puzzles based around the game 0hh1, found at 0hh1.com: a grid logic game in which you must deduce which tiles are blue and which are red. Related to 0hn0, which is made by the same people.
2 questions
For puzzles based around the game 0hno, found at 0hn0.com: a grid logic game in which you must deduce which dots are blue and which are red. Related to the game 0hh1 made by the same people.
2 questions
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For puzzles involving the use of acronyms (where the initial letters of a sentence or paragraph form another word or sentence).
4 questions
A puzzle in which certain letters, e.g. of each word, line, or paragraph, form a meaningful word or words when put together.
71 questions
An affix riddle is a specific type of riddle that clues the target word by describing multiple, possibly overlapping parts of the word separately. Usually the beginning (prefix), the middle (infix), a…
200 questions
0 questions
A mathematical puzzle about the manipulation and solution of equations. Use with [mathematics]
66 questions
A puzzle related to algorithms (a main concept in computer science). Puzzles may ask for an algorithm as an answer or require the analysis of a given algorithm.
170 questions
Alphametic puzzles involve equations where digits have been replaced with letters, where the goal is usually to reconstruct the original equation, matching letters to numbers.
141 questions
An alternate reality game is a game, usually online, involving puzzles and ciphers hidden in mysterious videos, images or audio with a story behind them. Usually it is meant to promote a product.
9 questions
An anagram rearranges the letters of a word or phrase to produce a new word or phrase.
267 questions
A puzzle that makes use of Japanese cartoon animation knowledge, such as titles and character names.
6 questions
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In a 'blackboard puzzle' a set of numbers is transformed according to certain rules.
19 questions
For questions related to the puzzle of islanders who can only leave when they deduce the colour of their own eyes.
23 questions
A board game is a game that involves counters or pieces moved or placed on a "board" according to a fixed set of rules.
147 questions
A Bongard problem usually consists of two sets of 6 boxes, positioned beside each other. The task is to discover a rule that describes the contents of each of the 6 boxes on the left-hand side, but do…
16 questions
For puzzles involving the card game Bridge. If your question isn't a puzzle but a general Bridge question, it's better asked on our sister site Board & Card Games.
3 questions
A burr puzzle is an interlocking puzzle consisting of several three-dimensional pieces that are combined to make one three-dimensional unit.
12 questions
A puzzle that involves numerical calculations, such as multiplication and addition. Use with the [mathematics] tag.
1095 questions
Puzzles involving cellular automatons in a 2D or 3D grid.
30 questions
A puzzle involving checkerboards: grids of squares alternating black and white in color, most commonly an 8x8 board.
182 questions
A puzzle that makes use of chemical knowledge, such as the names and atomic numbers of chemical elements.
60 questions
A puzzle related to chess, a two-player board game with white and black pieces of varying ranks.
597 questions
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A cipher is a simple method of modifying messages to make them unreadable except to readers who know the key. Common ciphers are Caesar, Vigenere, Atbash, and several types of substitution cipher. Oth…
1820 questions